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A device for separating solid polymers from mixed emulsions

A technology for separating solid polymers, which is applied in the field of equipment for separating solid polymers from mixed emulsions. It can solve problems such as difficult recycling, pipeline loss, and cumbersome process operations, so as to save reaction cycles and quickly recycle. , The effect of shortening the reaction process

Active Publication Date: 2019-02-22
贵州省欣紫鸿药用辅料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the process operation of this treatment method is cumbersome, and in the process of treatment, it is easy to be lost in the pipeline of existing equipment, making it difficult to be recycled by a large number of

Method used

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  • A device for separating solid polymers from mixed emulsions

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Embodiment

[0024] Such as figure 1 as shown,

[0025] A device for separating solid polymers from mixed emulsions, the device is a tank integrating filtration and reaction, and a transmission device 1 is arranged on the top of the tank; a double-layer part is arranged on the tank wall , and form a water passage 9; the tank wall is also provided with a filter interlayer 5; the top of the tank is provided with a feed hole 3 and a safety hole 2; near the bottom of the tank, the water passage 9 is provided with a A water inlet 6; a water outlet 7 is provided near the water channel 9 at the top of the tank; a discharge port 8 is provided at the bottom of the tank; a stirring rod 1-1 is provided on the transmission device 1, and the stirring rod 1-1 extending into the tank. The filter interlayer 5 can move up and down in the tank, or take it out of the tank, so that it can be directly separated and filtered in the reaction tank, and the liquid remains in the reaction tank; avoiding the loss ...

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Abstract

The invention relates to the technical field of separating solid from emulsion, in particular to a device for separating solid polymer from mixed emulsion. By means of an arrangement integrating filtration and reaction, in the process of separating the solid polymer from the emulsion, the solid polymer and the emulsion can be conveniently and quickly separated, moreover, the solvent emulsion can be rapidly recycled, and loss which is caused as the emulsion returns via a pipeline after being filtered out is reduced; reaction solution can directly remain in a reaction kettle to continue to participate in reaction, consequently, the reaction period is shortened, the reaction process is shortened, the production cost is reduced, and the filtering method is simple.

Description

technical field [0001] The invention relates to the technical field of separating solids in emulsions, in particular to a device for separating solid polymers from mixed emulsions. Background technique [0002] Cross-linked povidone (referred to as PVPP) is a cross-linked water-insoluble homopolymer synthesized from N-vinyl-2-pyrrolidone (NVP). It is often used as a disintegrant and filler in medicines. It has many excellent and It is an important pharmaceutical excipient due to its unique properties. [0003] At present, for cross-linked povidone prepared by chemical cross-linking in China, the monomer dissolved with the initiator is suspended in the inorganic salt solution in the form of droplets to carry out free radical polymerization. This process can make its reaction The heat dissipation of the system is fast, the temperature is easy to control, and the polymerization speed is easy to control. The polymerization medium used is water, and its price is low. However, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/18B01D29/11C08F26/10C08F6/16
CPCB01D29/117B01J19/0053B01J19/18C08F6/16C08L39/06
Inventor 洪怡沈惠
Owner 贵州省欣紫鸿药用辅料有限公司
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